#645FAE

#645FAE

Color Values

HEX

#645FAE

RGB

100, 95, 174

HSL

243.8, 32.8%, 52.7%

HSV

243.8, 45.4%, 68.2%

CMYK

42.5%, 45.4%, 0.0%, 31.8%

OKLCH

0.5274 0.1216 284.3

Properties

Cool Dark Nearest: Blue Violet

Color Harmonies

Complementary

#645FAE

#A9AE5F

Analogous

#5F81AE

#8B5FAE

#645FAE

Triadic

#645FAE

#AE645F

#5FAE64

Split Complementary

#645FAE

#AE8B5F

#81AE5F

Tetradic

#645FAE

#AE5F81

#A9AE5F

#5FAE8B

Color Blindness Simulation

Original

#645FAE

Protanopia

#62629B

Deuteranopia

#626296

Tritanopia

#648C88

Achromatopsia

#666666

CSS Usage

background-color: #645FAE;
color: #645FAE;
border-color: #645FAE;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F5F5F9
100
#E9E8F2
200
#D1D0E7
300
#B0AED6
400
#8682C0
500
#5B56A9
600
#494587
700
#3A376C
800
#2D2B55
900
#24223F
950
#171628

Contrast Checker

Text on white

5.54:1

AA Pass AAA Fail

Text on black

3.79:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026